Write the significance of total internal reflection in case of optical fibre.
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In fibre optics ,a optical phenomenon known as total internal reflection is used to transmit light rays.
In case of the simplest form of optical fiber, light entering one end of the fiber strikes the boundary of the fiber and is reflected inward. The light travels through the fiber in a succession of zigzag reflections until it exits from the other end of the fiber.
In the other type of optical fibers,they are designed in such a way that the zigzagging of the light is greatly reduced or virtually eliminated.
In case of the simplest form of optical fiber, light entering one end of the fiber strikes the boundary of the fiber and is reflected inward. The light travels through the fiber in a succession of zigzag reflections until it exits from the other end of the fiber.
In the other type of optical fibers,they are designed in such a way that the zigzagging of the light is greatly reduced or virtually eliminated.
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